AGREEMENT TO RESCIND

                     INTELLECTUAL PROPERTY LICENSE AGREEMENT

      THIS AGREEMENT TO RESCIND  INTELLECTUAL  PROPERTY LICENSE  AGREEMENT (this
"Agreement") is made as of December ___, 2004,  between TechAlt,  Inc., a Nevada
corporation (f/k/a Dendo Global Corp.) ("Pubco"),  and Technology  Alternatives,
Inc., an Illinois corporation ("Privateco")  (collectively,  the "Parties"). All
capitalized  terms not defined herein shall have the meaning assigned to them in
the License Agreement (defined below).

      WHEREAS,  on or around August 20, 2004 Pubco entered into an  Intellectual
Property License Agreement, a copy of which is attached hereto as Exhibit A (the
"License Agreement") with Privateco,  pursuant to which 10,044,000 shares of the
common stock of Pubco (the  "Shares") were issued to Privateco and certain other
parties in exchange  for  $100,000  and the  licensing  of certain  intellectual
property of Privateco to Pubco;

      WHEREAS,  shortly after  consummation of the License  Agreement a minority
shareholder of Privateco  instituted a lawsuit  involving  claims related to the
License Agreement (the "Lawsuit"); and

      WHEREAS,  to satisfy  certain  demands  of the  minority  shareholder  who
brought the Lawsuit the Parties  have entered  into  discussions  to rescind the
License  Agreement  with the  intent of  restoring  the status quo as it existed
prior to consummation of the License Agreement;

      NOW, THEREFORE,  for good and valuable  consideration,  the sufficiency of
which is hereby  acknowledged,  the Parties do hereby enter into this  Agreement
and stipulate, covenant, warrant, and agree as follows:

1. Rescission of the License Agreement.  Privateco hereby rescinds ab initio its
licensing  of  the  intellectual  property  licensed  pursuant  to  the  License
Agreement  (the "IP") and Pubco agrees to said  rescission  ab initio of the IP,
which  rescission  the Parties  acknowledge  shall  restore the status quo as it
existed immediately before the Parties entered into the Licensing Agreement when
Pubco had no rights to exploit the IP. The period  between  consummation  of the
Licensing  Agreement and  consummation  of this Agreement  shall  hereinafter be
referred to as the "Rescission Period."

2. Re-establishing the Status Quo. The Parties agree to take the following steps
in the  interest  of  re-establishing  the status quo as it existed  immediately
prior to consummation of the Licensing Agreement.

      (a) All revenue  earned and expenses  incurred with respect to the License
Agreement by Pubco during the  Rescission  Period shall be considered  Privateco
revenue and expense.

      (b) All contracts entered into by Pubco during the Rescission Period shall
be considered contracts of Privateco and where possible subject to novation.



      (c) All certificates  representing  Shares and Additional  Shares of Pubco
issued pursuant to the License  Agreement during the Rescission  Period shall be
returned to Pubco and cancelled.

      (d) The Boards of  Directors  of both  Pubco and  Privateco  as  currently
constituted shall adopt resolutions approving this Agreement.

      (e) All  documents,  records,  instruments  and  other  written  materials
transferred  from Privateco to Pubco pursuant to the License  Agreement shall be
returned to Privateco.

      (f) All ancillary  documents  executed in connection with  consummation of
the License Agreement are hereby rescinded ab initio, including, but not limited
to, all Investment Letters and the Indemnification Agreement.

      (g) All transaction documents shall be obtained by Privateco and marked or
deemed cancelled ab initio.

      (h) All shares cancelled by Pubco pursuant to the License  Agreement shall
be deemed to have not been cancelled and shall be deemed  cancelled  pursuant to
the Agreement and Plan of Merger between Pubco and Privateco, a copy of which is
attached hereto as Exhibit B.

3. General Provisions.

      (a) This  Agreement  shall  be  governed  by and  shall  be  construed  in
accordance  with the laws of the  State of  Nevada  as they  apply to  contracts
entered into and wholly to be performed in such state. This Agreement represents
the entire  agreement  between the parties  with  respect to the subject  matter
hereof.  The Parties  hereto  hereby agree that any suit,  action or  proceeding
instituted  with  respect to this  Agreement  shall be brought only in a Federal
court or state court located in the State of Nevada. Further, the parties hereby
waive any and all rights to a jury trial.

      (b) Any notice, demand or request required or permitted to be given by the
Parties pursuant to the terms of this Agreement shall be in writing and shall be
deemed given (i) when delivered personally, (ii) five (5) business days after it
is deposited in the U.S. mail,  certified with return receipt requested and with
proper  postage  prepaid,  or  (iii)  one day  after  deposit  (prepaid)  with a
nationally  recognized  overnight  courier,  and  addressed  to the party  being
notified at his or its address specified on the applicable signature page hereto
or such other address which the addressee may subsequently notify the Parties in
writing.

      (c) Failure by any of the Parties to enforce any  provision or  provisions
of this  Agreement  shall  not in any way be  construed  as a waiver of any such
provision or provisions,  nor prevent that party  thereafter from enforcing each
and every other  provision  of this  Agreement.  The rights  granted the Parties
herein are  cumulative and shall not constitute a waiver of any party's right to
assert all other legal remedies available to it under the circumstances.


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      (d) The  Parties  acknowledge  that money  damages  may not be an adequate
remedy for  violations  of this  Agreement  and that any party may,  in its sole
discretion,  apply to a court of competent jurisdiction for specific performance
or  injunctive  or such  other  relief as such court may deem just and proper to
enforce  this  Agreement or to prevent any  violation  hereof and, to the extent
permitted by applicable  law, each party waives any objection to the  imposition
of such relief in appropriate circumstances.

      (e) This  Agreement  may be  executed  by  facsimile  and in any number of
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.

      (f) Each  party to this  Agreement  represents  that  such  party has duly
authorized,  executed and delivered  this Agreement and that this Agreement is a
valid and binding  obligation of such party,  enforceable  against such party in
accordance with its terms.

      (g) All  parties  to this  Agreement  have  been duly  consulted  with the
counsel of their choosing,  and understand  each and every term,  obligation and
condition imposed by this Agreement.

      (h) The terms of this  Agreement  shall  remain  confidential  between the
parties  to this  Agreement  and their  respective  attorneys,  accountants  and
corporate  officers and  directors;  provided,  however,  that the terms of this
Agreement may be disclosed as required under federal and state  securities laws,
rules and regulations, or as required by court order.


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      IN WITNESS  WHEREOF,  the parties have executed  this  Agreement as of the
date first written above.

         PUBCO:

         TECHALT, INC.

         By:

         ------------------------------
         Name: David M. Otto
         Its: Secretary

         PRIVATECO:

         TECHNOLOGY ALTERNATIVES, INC.

         By:

         ------------------------------
         Name: James E. Solomon
         Its: President & Chief Executive Officer

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